What potential pitfalls should be considered when creating a PHP website for inventory management?

One potential pitfall when creating a PHP website for inventory management is not properly sanitizing user input, which can lead to SQL injection attacks. To prevent this, always use prepared statements when interacting with a database to ensure that user input is properly escaped. 

// Connect to the database
$pdo = new PDO("mysql:host=localhost;dbname=inventory", "username", "password");

// Prepare a SQL statement with placeholders
$stmt = $pdo->prepare("SELECT * FROM products WHERE id = :id");

// Bind the user input to the placeholders
$stmt->bindParam(':id', $_POST['product_id']);

// Execute the statement
$stmt->execute();

// Fetch the results
$results = $stmt->fetchAll();

Keywords

SQL injection data validation session management error handling performance optimization

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